SL-8 R/B

Satellite information

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Satellite Type and Status

ROCKET BODYIN ORBIT

Key statistics

Satellite SL-8 R/B at a glance.

Uptime

19910

Days in orbit

Revolutions

≈ 14.4

Per day

Orbit

LEO

Low Earth Orbit

Inclination

74.0

Latest

Satellite identification and parameters

Extended collection of information and parameters for SL-8 R/B.

Object identification

Identified? True

Debris? False

Object name: SL-8 R/B

International designator: 1971-035B

Object number (NORAD): 5175

Object ID (CCSDS): 5175

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 100.044 minutes

Inclination: 74.0496 deg

SMA: 7138.724 km

Apoapsis: 781.297 km

Periapsis: 739.88 km

RAAN: 350.6044 deg

Eccentricy: 0.00290086

Argument of periapsis: 165.1844 deg

Mean anomaly: 195.0168 deg

Mean motion: 14.39368156 rev/day

Mean motion (dot): 0.00000329 rev/day²

B* drag term: 0.00011379755 1/R_Earth

Two-line elements (TLE)

Creation date: Oct. 25, 2025, 3:11 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Oct. 24, 2025, 8:46 p.m. UTC

TLE line 0: 0 SL-8 R/B

TLE line 1: 1 05175U 71035B 25297.86595561 .00000329 00000-0 11380-3 0 9994

TLE line 2: 2 05175 74.0496 350.6044 0029009 165.1844 195.0168 14.39368156853407

Live tracking on map

Real-time ground track for satellite SL-8 R/B.

In-orbit conjunctions

A list of the most updated potential collisions computed for object SL-8 R/B.

Target	Orbit	TCA	Probability of collision	Miss distance	Type
CZ-6A DEB	SSO	2025-09-03 08:17:46	0.0001397889	245.0 (m)	DEBRIS
RITE TARGET 1	SSO	2025-05-07 05:05:59	0.001479418	56.0 (m)	PAYLOAD
MOLNIYA 3-13	HEO	2025-02-11 09:38:32	0.001292633	197.0 (m)	PAYLOAD
FENGYUN 1C DEB	SSO	2025-01-07 09:36:14	0.0003122889	364.0 (m)	DEBRIS
CZ-2D DEB	SSO	2024-08-29 23:30:56	0.0001127681	842.0 (m)	DEBRIS

Associated space launch

Military communications satellite

SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 3’, on board a Kosmos-3M space rocket.

The launch took place on April 23, 1971, 11:30 a.m. from 132/1 (132L).

For more information about the launch, click the button.

Kosmos-3M | Strela-2M 3

Agency: N/A

Status: Launch Successful

Launch date: April 23, 1971, 11:30 a.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/1 (132L)

Location: Plesetsk Cosmodrome, Russian Federation

...

Go to the launch

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